Pen-shaped medical lamp tube with buckle type pen clip

Abstract

The utility model relates to a pen-shaped lamp tube with a buckle type pen clip, which comprises a main body, a pen cap and the pen clip, the pen cap is arranged on the main body, the pen clip is provided with a pen cap opposite to the pen cap, the pen cap is provided with a fixed part which enters the pen cap and is attached to the pen cap, the pen cap is provided with a clamping groove, the fixed part is provided with an elastic clamping block opposite to the clamping groove, and the elastic clamping block is provided with a clamping groove. The elastic clamping block is provided with an inclined face, a vertical face and a transverse face which are sequentially arranged in the vertical direction, the elastic clamping block has an entering state and a fixing state, the entering state is that the inclined face is opposite to the pen cap, and the pen cap is in sliding fit with the pen cap, and the fixing state is that the transverse face is opposite to the clamping groove, the elastic clamping block enters the clamping groove, and the pen cap is in fixed fit with the pen cap.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pen-shaped lamp cylinder, in particular to a pen-shaped lamp cylinder with a buckle type pen clip. BACKGROUND

[0002] The pen-shaped medical flashlight is a core tool for medical staff to perform routine diagnosis such as pupil light reflection and throat examination, and its portability and convenient operation are crucial. Unlike traditional lighting tools, such flashlights usually integrate a special integrated design: the pen clip is not only used to fix the flashlight in the pocket, but also directly serves as an actuator to control the light switch. The user can trigger the internal micro switch by pressing the tail of the pen clip to turn on and off the light. This design allows doctors to operate blindly with one hand, greatly improving the diagnosis and treatment efficiency and experience.

[0003] Currently, the mainstream structure to realize the pen clip pressing function is to permanently fix the metal base of the pen clip on the plastic pen cap by interference fit or adhesive bonding. The pen clip takes the fixed point as the fulcrum, and the tail becomes the pressable moving end. This design concept is widely used in the industry, and its advantages are simple assembly process and low cost.

[0004] However, applying this traditional connection method to a medical flashlight with a switch function has serious functional and safety defects. First, as a high-frequency pressing moving part, the pen clip's fulcrum bears continuous cyclic stress, which can cause metal fatigue or plastic creep under long-term stress, resulting in loose fulcrum, poor pressing feel, inaccurate stroke, and even eventual failure to trigger the switch. Second, medical equipment must withstand frequent wiping with alcohol, disinfectant, and other chemicals. Adhesives can easily degrade under chemical corrosion, which can also cause gaps or detachment between the pen clip and the pen cap, directly causing the switch to malfunction. Most seriously, once this irreversible connection fails, it cannot be repaired, and the entire flashlight is declared scrap, posing a significant risk that the diagnostic tool cannot be used in an emergency. It also violates the high standards of reliability and sustainability required for medical equipment. SUMMARY

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a pen-shaped lamp cylinder with a buckle type pen clip.

[0006] To achieve the above object, the utility model provides the following technical scheme: including main part, pen cap and pen clip, the pen cap sets up on the main part, the pen clip is provided with the cap opposite to the pen cap, the pen cap has the fixed part that enters the cap and is pasted with the cap, is provided with the elastic clamping block opposite to the clamping groove on the fixed part, the elastic clamping block has the oblique surface, vertical surface and horizontal surface that are arranged in sequence along the vertical direction, the elastic clamping block has the entering state and fixed state, the entering state is that the oblique surface is opposite to the cap, and the cap is slidably connected with the pen cap, and the fixed state is that the horizontal surface is opposite to the clamping groove, and the elastic clamping block enters the clamping groove, and the cap is fixedly connected with the pen cap, it needs to be explained that the light emitting structure in the main part is prior art, is very mature, so it is not described again.

[0007] Through adopting the above technical scheme, when the cap is pushed to the pen cap, the oblique surface of the elastic clamping block guides it to elastically deform and slide into the cap, until the horizontal surface is aligned with the clamping groove, the clamping block rebounds and clamps into the groove, achieving the fixed state; a high-reliability and fast connection mode is provided, avoiding the problem that the gluing or press-fitting mode is prone to loosening or failure under long-term pressing, significantly improving the durability and maintainability of the pen clip switch mechanism, meeting the strict requirements of medical equipment on functional reliability and service life.

[0008] The utility model further sets up: the clamping groove is opposite to the pen clip.

[0009] Through adopting the above technical scheme, the relative position of the clamping groove and the pen clip enables the clamping groove to be hidden under the pen clip, being more beautiful.

[0010] The utility model further sets up: the cap is provided with a guide block, and the guide block extends to the cap mouth along the vertical direction; the fixed part is provided with a guide groove opposite to the guide block.

[0011] Through adopting the above technical scheme, the guide block enters the guide groove first when the cap is pushed into the pen cap, guiding the cap and the pen cap to slide along the preset path, avoiding the elastic clamping block and the cap from being misaligned or clamped; the assembly smoothness and accuracy are improved.

[0012] The utility model further sets up: the guide block and the guide groove are two in number, and the guide block and the clamping groove are evenly distributed in the cap; the guide groove and the elastic clamping block are evenly distributed on the fixed part.

[0013] Through adopting the above technical scheme, the multiple symmetrically arranged structures jointly undertake the guiding and clamping functions in the assembly process, making the cap force more balanced; the stability and torsional resistance of the connection are further enhanced, preventing unilateral stress concentration from causing the clamping block to fatigue or damage, improving the structural strength and long-term use reliability of the product.

[0014] The utility model further sets up: the pen clip includes connecting portion, elastic part and pressing portion, connecting portion is connected with the pen cover, and the elastic part is located between connecting portion and pressing portion, and the pressing portion has the pressing protrusion opposite to the pen cap.

[0015] Through adopting the above technical scheme, the multiple symmetrically arranged structures jointly undertake the guiding and clamping effects in the assembly process, the pen cover is more balanced in stress, the stability and the torsional capacity of the connection are enhanced, the single side stress concentration leading to the clamping block fatigue or damage is prevented, the structural strength and the long-term use reliability of the product are improved, and in the manufacturing process, the symmetric structure reduces the manufacturing.

[0016] The utility model further sets up: the main part and the pen cap adopt the screw thread cooperation.

[0017] Through adopting the above technical scheme, the pen cap is fastened and connected with the main body through rotation, and the replacement and maintenance of the internal battery or circuit are convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the overall structural schematic diagram of the utility model;

[0019] Fig. 2 It is the structural schematic diagram of the pen clip and the pen cover of the utility model;

[0020] Fig. 3 It is the structural schematic diagram of the pen cap of the utility model.

[0021] In the drawing: 1, main body;2, pen cap;3, pen clip;31, connecting portion;32, elastic part;33, pressing portion;34, pressing protrusion;4, pen cover;41, clamping groove;42, guiding block;5, fixed part;51, elastic clamping block;52, guiding groove. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, and obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor belong to the range of the utility model protection.

[0023] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] As shown in Figs. 1-3 The utility model discloses a pen-shaped lamp cylinder of buckle type pen clip, including main part 1, pen cap 2 and pen clip 3, pen cap 2 sets up on main part 1, pen clip 3 is provided with the cap 4 opposite to pen cap 2, pen cap 2 has the fixed part 5 into the cap 4 and is bonded with the cap 4, the cap 4 is provided with the clamping groove 41, the fixed part 5 is provided with the elastic clamping block 51 opposite to the clamping groove 41, the elastic clamping block 51 has the oblique face 511, vertical face 512 and horizontal face 513 arranged in sequence along the vertical direction, the elastic clamping block 51 has the entering state and fixed state, and the entering state is that the oblique face 511 is opposite to the cap 4, and the cap 4 is slidably connected with the pen cap 2, and the fixed state is that the horizontal face 513 is opposite to the clamping groove 41, and the elastic clamping block 51 enters the clamping groove 41, and the cap 4 is fixedly connected with the pen cap 2, it needs to be explained that the light emitting structure in main part 1 is prior art, is very mature, therefore does not elaborate again, when the cap 4 is pushed to the pen cap 2, the oblique face 511 of the elastic clamping block 51 guides its elastic deformation and slides into the inside of the cap 4, until the horizontal face 513 is aligned with the clamping groove 41, and the clamping block rebounds, and is clamped into the groove, realize fixed state, provide a kind of high reliability, fast connection mode, avoid the problem that adhesive or press-fit mode is easily loose or failure under long-term pressing, significantly improve the durability and maintainability of pen clip 3 switch mechanism, meet the strict requirements of medical equipment to function reliability and service life.

[0025] The clamping groove 41 is opposite to the pen clip 3, and the relative position of the clamping groove 41 and the pen clip 3 enables the clamping groove 41 to be hidden under the pen clip 3, which is more beautiful.

[0026] The cap 4 is provided with a guide block 42, and the guide block 42 extends vertically to the cap opening of the cap 4. The fixed part 5 is provided with a guide groove 52 opposite to the guide block 42. When the cap 4 is pushed into the pen cap 2, the guide block 42 enters the guide groove 52 first, guiding the two to slide along the preset path, avoiding the elastic clamping block 51 and the cap 4 from being misaligned or clamped.

[0027] The guide block 42 and the guide groove 52 are two in number, the guide block 42 and the clamping groove 41 are uniformly distributed in the pen cover 4, the guide groove 52 and the elastic clamping block 51 are uniformly distributed on the fixed part 5, and a plurality of symmetrically arranged structures jointly bear the guiding and clamping effects in the assembly process, so that the pen cover 4 is more balanced in stress; further enhance the stability and anti-torsion ability of the connection, prevent unilateral stress concentration from causing clamping block fatigue or damage, improve the structural strength and long-term use reliability of the product.

[0028] The pen clip 3 includes a connecting part 31, an elastic part 32 and a pressing part 33, the connecting part 31 is connected with the pen cover 4, the elastic part 32 is located between the connecting part 31 and the pressing part 33, the pressing part 33 has a pressing protrusion 34 opposite to the pen cap 2, a plurality of symmetrically arranged structures jointly bear the guiding and clamping effects in the assembly process, so that the pen cover 4 is more balanced in stress, the stability and anti-torsion ability of the connection are enhanced, unilateral stress concentration is prevented from causing clamping block fatigue or damage, the structural strength and long-term use reliability of the product are improved, and the symmetric structure reduces the manufacturing difficulty in the manufacturing process.

[0029] The main body 1 and the pen cap 2 are threadedly connected, the pen cap 2 is tightly connected with the main body 1 by rotating, and the internal battery or circuit is convenient to replace and maintain.

[0030] Working process: the assembly and operation of the pen-shaped lamp barrel starts from aligning the pen cover 4 and the pen cap 2, the guide block 42 in the pen cover 4 slides into the guide groove 52 of the fixed part 5 of the pen cap 2, ensuring that the two are relatively moved along the correct path; then, the inclined surface 511 of the elastic clamping block 51 on the fixed part 5 of the pen cap 2 is in contact with the pen cover 4 and is extruded to be elastically deformed, until the transverse surface 513 of the clamping block is aligned with the clamping groove 41 of the inner wall of the pen cover 4, the clamping block rapidly rebounds and is clamped into the clamping groove 41, and a click sound indicates that the pen cover 4 is tightly locked with the pen cap 2; at this time, the pen clip 3 is in a predetermined direction because the clamping groove 41 is opposite to it, and the protrusion of the pressing part 33 is opposite to the internal switch; the user presses the tail of the pen clip 3, the elastic part 32 is deformed, and the pressing protrusion 34 triggers the switch to light the light.

Claims

1. A pen-shaped medical light tube of a buckle type pen clip, comprising a main body (1), a pen cap (2) and a pen clip (3), the pen cap (2) is arranged on the main body (1), characterized in that: The pen clip (3) is provided with a pen cover (4) opposite to the pen cap (2), the pen cap (2) has a fixed part (5) entering the pen cover (4) and abutting with the pen cover (4), the pen cover (4) is provided with a clamping groove (41), the fixed part (5) is provided with an elastic clamping block (51) opposite to the clamping groove (41), the elastic clamping block (51) has a diagonal face (511), a vertical face (512) and a horizontal face (513) arranged in sequence along the vertical direction, the elastic clamping block (51) has an entering state and a fixed state, the entering state is that the diagonal face (511) is opposite to the pen cover (4), the pen cover (4) is in sliding fit with the pen cap (2), the fixed state is that the horizontal face (513) is opposite to the clamping groove (41), the elastic clamping block (51) enters the clamping groove (41), and the pen cover (4) is in fixed fit with the pen cap (2).

2. A medical pen light according to claim 1, wherein: The clamping groove (41) is opposite to the pen clip (3).

3. A medical pen light according to claim 2, wherein: the clip is a snap-on clip. The pen cover (4) is provided with a guide block (42) inside and the guide block (42) extends to the cover opening of the pen cover (4) along the vertical direction, and the fixed part (5) is provided with a guide groove (52) opposite to the guide block (42).

4. A medical pen light according to claim 3, wherein: The guide block (42) and the guide groove (52) are two in number, the guide block (42) and the clamping groove (41) are uniformly distributed in the pen cover (4), and the guide groove (52) and the elastic clamping block (51) are uniformly distributed on the fixed part (5).

5. A pen-shaped medical lamp holder with a snap-on pen clip according to claim 1, characterized in that: The pen clip (3) comprises a connecting part (31), an elastic part (32) and a pressing part (33), the connecting part (31) is connected with the pen cover (4), the elastic part (32) is located between the connecting part (31) and the pressing part (33), and the pressing part (33) has a pressing protrusion (34) opposite to the pen cap (2).

6. A medical pen light according to claim 1, wherein: the clip is a snap clip. The main body (1) is in threaded fit with the pen cap (2).

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